KSSG2.5-70J40 is a ground spur gear with a module of 2.5, 70 teeth, and a 40 mm bore diameter. It has a pitch diameter of 175 mm, an outside diameter of 180 mm, a face width of 25 mm, a hub width of 18 mm, and a total length of 43 mm. The gear is made of S45C steel with induction-hardened tooth surfaces achieving 50-60 HRC hardness. It is precision-grade JIS N7 per JIS B1702-1:1998, has a 20° pressure angle, and uses a keyway sized 12 × 3.3 mm with an M8 set screw. The allowable torque is 4.98 N·m (3.73 kgf·m), and the backlash is 0.14-0.24 mm. No secondary operations are permitted on the tooth area due to induction hardening.
Module 2.5, 70 Tooth Ground Steel Spur Gear with 40mm Finished Bore
Inch Gears: AGMA 12, 10, 9, and 8
Available Pitches: 120 thru 16
Pressure Angles: 20° and 14.5°
Metric Gears: ISO 5 thru 9
Available Modules: 0.3 thru 3
Pressure Angles: 20° and 14.5°
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Elements of Metric Gear Technology
How to Achieve Optimum Performance in a Miniature Gear Train
You May Also Need:
Shafts
Bearings
Couplings
Our metal spur gears are available in a variety of materials, including:
With a variety of fastening styles, including:
| QTC METRIC GEARS | Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|---|
| Product Category | Gears | Gears |
| Product Number | KSSG2.5-70J40 | KSSG2.5-70J40 |
| Product Name | Metal Spur Gears (metric) | Module 2.5, 70 Tooth Ground Steel Spur Gear with 40mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 70 | 70 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Hardened; Hardened Carbon Steel |
